Exodus 11:7

But against none of the children of Israel shall a dog move its tongue, against man or beast, that you may know that the LORD does make a difference between the Egyptians and Israel.'

Surrounding context

11:6 Then there shall be a great cry throughout all the land of Egypt, such as was not like it before, nor shall be like it again.

11:7 But against none of the children of Israel shall a dog move its tongue, against man or beast, that you may know that the LORD does make a difference between the Egyptians and Israel.'

11:8 And all these your servants shall come down to me and bow down to me, saying, "Get out, and all the people who follow you!' After that I will go out." Then he went out from Pharaoh in great anger.

Translation and sources